:root {
  color-scheme: dark light;
  --bg: #0b1220;
  --panel: rgba(255, 255, 255, 0.06);
  --text: rgba(255, 255, 255, 0.92);
  --muted: rgba(255, 255, 255, 0.72);
  --border: rgba(255, 255, 255, 0.14);
  --primary: #6ea8fe;
  --danger: #ff6b6b;
  --shadow: 0 16px 48px rgba(0, 0, 0, 0.18);
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #f7f8fc;
    --panel: rgba(10, 20, 40, 0.06);
    --text: rgba(10, 20, 40, 0.92);
    --muted: rgba(10, 20, 40, 0.68);
    --border: rgba(10, 20, 40, 0.16);
    --primary: #2f6feb;
    --danger: #c62828;
    --shadow: 0 16px 48px rgba(10, 20, 40, 0.12);
  }
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
}

body {
  margin: 0;
  font-family:
    ui-sans-serif,
    system-ui,
    -apple-system,
    Segoe UI,
    Roboto,
    Arial,
    'Noto Sans',
    'PingFang TC',
    'Microsoft JhengHei',
    sans-serif;
  background:
    radial-gradient(1200px 600px at 20% 0%, rgba(110, 168, 254, 0.22), transparent 60%),
    radial-gradient(900px 520px at 90% 20%, rgba(110, 168, 254, 0.14), transparent 55%),
    var(--bg);
  color: var(--text);
}

a {
  color: inherit;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 18px;
}

.hidden {
  display: none !important;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(10, 18, 32, 0.55);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(14px);
}

@media (prefers-color-scheme: light) {
  .topbar {
    background: rgba(255, 255, 255, 0.72);
  }
}

.topbarInner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 58px;
  gap: 14px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font-weight: 900;
}

.brandMark {
  width: 28px;
  height: 28px;
  border-radius: 9px;
  display: grid;
  place-items: center;
  background: rgba(110, 168, 254, 0.22);
  border: 1px solid rgba(110, 168, 254, 0.35);
}

.nav {
  display: flex;
  gap: 12px;
  align-items: center;
}

.navLink {
  color: var(--muted);
  text-decoration: none;
  padding: 8px 10px;
  border-radius: 10px;
}

.navLink:hover {
  background: var(--panel);
  color: var(--text);
}

.select {
  padding: 10px 10px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(0, 0, 0, 0.28);
  color: var(--text);
  outline: none;
  color-scheme: dark;
}

.select:disabled {
  opacity: 0.7;
}

@media (prefers-color-scheme: light) {
  .select {
    background: rgba(255, 255, 255, 0.82);
    color: rgba(10, 20, 40, 0.92);
    color-scheme: light;
  }
}

.hero {
  padding: 28px 0 10px;
}

.heroTitle {
  margin: 22px 0 8px;
  font-size: clamp(26px, 2.4vw, 38px);
  letter-spacing: -0.2px;
}

.heroSubtitle {
  margin: 0 0 18px;
  color: var(--muted);
  line-height: 1.6;
  max-width: 62ch;
}

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 16px;
  box-shadow: var(--shadow);
}

.segmented {
  display: inline-flex;
  background: rgba(0, 0, 0, 0.14);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 4px;
  gap: 4px;
}

.seg {
  border: 0;
  border-radius: 999px;
  padding: 10px 14px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  font-weight: 800;
}

.seg.active {
  background: rgba(110, 168, 254, 0.22);
  color: var(--text);
}

.form {
  margin-top: 14px;
}

.field {
  display: grid;
  gap: 8px;
  margin-bottom: 12px;
}

.label {
  font-weight: 800;
  color: var(--muted);
}

input[type='url'] {
  width: 100%;
  padding: 12px 12px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(0, 0, 0, 0.12);
  color: var(--text);
  outline: none;
}

textarea {
  width: 100%;
  padding: 12px 12px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(0, 0, 0, 0.12);
  color: var(--text);
  outline: none;
  resize: vertical;
  font-family:
    ui-monospace,
    SFMono-Regular,
    Menlo,
    Monaco,
    Consolas,
    'Liberation Mono',
    'Courier New',
    monospace;
  line-height: 1.45;
}

input[type='url']:focus,
.field textarea:focus,
.select:focus {
  border-color: rgba(110, 168, 254, 0.55);
  box-shadow: 0 0 0 4px rgba(110, 168, 254, 0.18);
}

.hint {
  color: var(--muted);
  font-size: 12.5px;
  line-height: 1.4;
  overflow-wrap: anywhere;
  word-break: break-word;
}

.grid2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  align-items: end;
}

@media (max-width: 860px) {
  .grid2 {
    grid-template-columns: 1fr;
  }
}

.actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.btn {
  padding: 11px 14px;
  border-radius: 12px;
  border: 1px solid rgba(110, 168, 254, 0.35);
  background: rgba(110, 168, 254, 0.18);
  color: var(--text);
  font-weight: 900;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.btn.secondary {
  border-color: var(--border);
  background: transparent;
}

.btn.ghost {
  border-color: rgba(110, 168, 254, 0.28);
  background: transparent;
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.fineprint {
  margin: 10px 0 0;
  color: var(--muted);
  line-height: 1.55;
  font-size: 13px;
}

.status {
  margin-top: 16px;
}

.statusMeta {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-top: 8px;
  color: var(--muted);
  font-weight: 700;
  flex-wrap: wrap;
}

.error {
  margin-top: 14px;
  padding: 12px;
  border-radius: 12px;
  border: 1px solid rgba(255, 107, 107, 0.35);
  background: rgba(255, 107, 107, 0.12);
  color: var(--text);
  white-space: pre-wrap;
}

.results {
  margin-top: 16px;
  border-top: 1px dashed var(--border);
  padding-top: 14px;
}

.resultsHead {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
}

.resultsTitle {
  margin: 0;
  font-size: 16px;
  letter-spacing: 0.2px;
}

.resultsGrid {
  margin-top: 12px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  width: 100%;
}

@media (max-width: 1020px) {
  .resultsGrid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 700px) {
  .resultsGrid {
    grid-template-columns: 1fr;
  }
}

.resultCard {
  background: rgba(0, 0, 0, 0.10);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 14px;
  display: grid;
  gap: 10px;
  min-width: 0;
  overflow: hidden;
}

.resultTop {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  align-items: start;
}

.resultTitle {
  font-weight: 900;
  line-height: 1.25;
  overflow-wrap: anywhere;
  word-break: break-word;
}

.badge {
  font-size: 12px;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.06);
  color: var(--muted);
  white-space: nowrap;
}

.bar {
  width: 100%;
  height: 10px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.10);
  overflow: hidden;
  border: 1px solid var(--border);
}

.barInner {
  width: 0%;
  height: 100%;
  background: linear-gradient(90deg, rgba(110, 168, 254, 0.95), rgba(110, 168, 254, 0.35));
  transition: width 180ms ease;
}

.resultMeta {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  color: var(--muted);
  font-weight: 800;
  font-size: 13px;
  flex-wrap: wrap;
}

.resultActions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: center;
}

.uploadAll {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
}

.uploadAll .select,
.uploadAll input {
  max-width: 100%;
}

.uploadFields {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  width: 100%;
}

@media (max-width: 900px) {
  .uploadFields {
    grid-template-columns: 1fr;
  }
}

.uploadFields input {
  width: 100%;
  padding: 10px 10px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(0, 0, 0, 0.12);
  color: var(--text);
  outline: none;
}

.uploadFields input:focus {
  border-color: rgba(110, 168, 254, 0.55);
  box-shadow: 0 0 0 4px rgba(110, 168, 254, 0.18);
}

.invalid {
  border-color: rgba(255, 107, 107, 0.7) !important;
  box-shadow: 0 0 0 4px rgba(255, 107, 107, 0.18) !important;
}

.resultPreview {
  display: grid;
  gap: 10px;
}

.media {
  width: 100%;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: rgba(0, 0, 0, 0.14);
}

.waveWrap {
  border-radius: 14px;
  border: 1px solid var(--border);
  overflow: hidden;
  background: rgba(0, 0, 0, 0.12);
}

.wave {
  width: 100%;
  height: auto;
  display: block;
}

.section {
  padding: 26px 0 8px;
}

.sectionTitle {
  margin: 0 0 12px;
  font-size: 18px;
  letter-spacing: 0.2px;
}

.toolGrid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

@media (max-width: 900px) {
  .toolGrid {
    grid-template-columns: 1fr;
  }
}

.toolCard {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 16px;
  display: grid;
  gap: 10px;
}

.toolCard.active {
  border-color: rgba(110, 168, 254, 0.32);
}

.toolCard.disabled {
  opacity: 0.6;
  filter: grayscale(0.1);
}

.toolIcon {
  width: 34px;
  height: 34px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: rgba(110, 168, 254, 0.14);
  border: 1px solid rgba(110, 168, 254, 0.20);
}

.toolName {
  font-weight: 900;
}

.toolDesc {
  color: var(--muted);
  line-height: 1.5;
}

.faq {
  margin-bottom: 12px;
}

.faq > summary {
  cursor: pointer;
  font-weight: 900;
}

.faqBody {
  color: var(--muted);
  line-height: 1.6;
  margin-top: 10px;
}

.footer {
  padding: 26px 0 40px;
  color: var(--muted);
}